Yes: ego, too.

The most notable populist in history was Julius Caesar. He—N.B., those who’ve been saying the 2016 election “had a sharp edge”—was stabbed to death by dozens of senators. The conspiracy was a confused mess. Some of the senators ended up stabbing each other. And the political aftermath was so much of a confused mess that it took Edward Gibbon 3,589 pages to describe it in The History of the Decline and Fall of the Roman Empire.